<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <link rel="stylesheet" type="text/css" href="animate.css">
    <style>
        html,body{
            height: 100%;
        }
        body{
            display: flex;
            justify-content: center;
            align-items: center;
            
        }
        div{
            width: 100px;
            height: 100px;
            background-color: red;
            border-radius: 50%;
            /*可以重置样式库的样式.*/
            animation-duration: 0.3s !important;
        }
    </style>
</head>
<body>
    <!--使用动画库, 只需要link引入后再在元素内添加class即可.-->
    <div class="animated fadeInUpBig infinite">
        
    </div>
</body>
</html>